feat: target group protocol variable (#38)

* feat: target group protocol variable for HTTP/HTTPS healthcheck

* Updated README.md

Co-authored-by: Idikoro Eradiri <ieradiri@soundexchange.com>
Co-authored-by: actions-bot <58130806+actions-bot@users.noreply.github.com>
Co-authored-by: Erik Osterman <erik@cloudposse.com>

README.md

@@ -215,6 +215,7 @@ Available targets:
 | target_group_additional_tags | The additional tags to apply to the target group | map(string) | `<map>` | no |
 | target_group_name | The name for the default target group, uses a module label name if left empty | string | `` | no |
 | target_group_port | The port for the default target group | number | `80` | no |
+| target_group_protocol | The protocol for the default target group HTTP or HTTPS | string | `HTTP` | no |
 | target_group_target_type | The type (`instance`, `ip` or `lambda`) of targets that can be registered with the target group | string | `ip` | no |
 | vpc_id | VPC ID to associate with ALB | string | - | yes |
 

docs/terraform.md

@@ -42,6 +42,7 @@
 | target_group_additional_tags | The additional tags to apply to the target group | map(string) | `<map>` | no |
 | target_group_name | The name for the default target group, uses a module label name if left empty | string | `` | no |
 | target_group_port | The port for the default target group | number | `80` | no |
+| target_group_protocol | The protocol for the default target group HTTP or HTTPS | string | `HTTP` | no |
 | target_group_target_type | The type (`instance`, `ip` or `lambda`) of targets that can be registered with the target group | string | `ip` | no |
 | vpc_id | VPC ID to associate with ALB | string | - | yes |
 

main.tf

@@ -99,12 +99,13 @@ module "default_target_group_label" {
 resource "aws_lb_target_group" "default" {
   name                 = var.target_group_name == "" ? module.default_target_group_label.id : var.target_group_name
   port                 = var.target_group_port
-  protocol             = "HTTP"
+  protocol             = var.target_group_protocol
   vpc_id               = var.vpc_id
   target_type          = var.target_group_target_type
   deregistration_delay = var.deregistration_delay
 
   health_check {
+    protocol            = var.target_group_protocol
     path                = var.health_check_path
     timeout             = var.health_check_timeout
     healthy_threshold   = var.health_check_healthy_threshold

variables.tf

@@ -229,6 +229,12 @@ variable "target_group_port" {
   description = "The port for the default target group"
 }
 
+variable "target_group_protocol" {
+  type        = string
+  default     = "HTTP"
+  description = "The protocol for the default target group HTTP or HTTPS"
+}
+
 variable "target_group_name" {
   type        = string
   default     = ""